Yvelines

Yvelines (French pronunciation:) is a department in the western part of the Île-de-Franceregion in Northern France. In 2023, it had a population of 1,485,086. Its prefecture is Versailles, home to the Palace of Versailles, the principal residence of the King of France from 1682 until 1789, a UNESCOWorld Heritage Site since 1979. Yvelines's subprefectures are Saint-Germain-en-Laye, Mantes-la-Jolie and Rambouillet.